The Recovery of Lignin from Reed Using Solid-DES Extraction (SDESE)

The current work presents a sustainable, environmentally friendly method for lignin extraction by applying deep eutectic solvents (DES), which are biodegradable. The Solid-DES extraction (SDESE) method of recovering lignin from reeds is presented. DES based on betaine hydrochloride and lactic acid (...

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Bibliographic Details
Main Authors: Ioana Popa-Tudor, Mălina Deșliu-Avram, Lucian Vlădulescu, Diana Constantinescu-Aruxandei, Florin Oancea
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Chemistry Proceedings
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Online Access:https://www.mdpi.com/2673-4583/13/1/9
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Summary:The current work presents a sustainable, environmentally friendly method for lignin extraction by applying deep eutectic solvents (DES), which are biodegradable. The Solid-DES extraction (SDESE) method of recovering lignin from reeds is presented. DES based on betaine hydrochloride and lactic acid (BeHCl, LA) was prepared and applied in SDESE at a ratio of 1:20 wt %. Fourier-transform infrared spectroscopy (FTIR) was used to characterize the materials. The DES-extracted lignin (DEL) from the reeds exhibited an interesting structure due to the rearrangement of syringyl, guaiacyl, and parahydroxyphenyl units that occurred as a result of DES breaking the initial raw material structure.
ISSN:2673-4583